Water-cooling apparatus for the explosive-mixture-operating motors of automobiles and other vehicles.



H. C. COLBURN.

WATER COOLING APPARATUS FOR THE EXPLOSIVE MIXTURE OPERATING MOTORS 0FAUTOMOBILES AND OTHER VEHICLES.

APPLICATION FILED MAR.31, 1911.

1,084,845, Patented Jan. 20, 1914.

2 SHEETS-SHEET 1.

COLUMBIA PLANOGRAPH CO., WASHINGTON. D.C.

r H. O. OOLBURN. WATER COOLING APPARATUS FOR THE EXPLOSIVE MIXTUREOPERATING MOTORS OF AUTOMOBILES AND OTHER VEHICLES.

APPLICATION FILED MAB.31, 1911.

4 45 Patented Jan. 20, 19M

\ l l Z I II I 1 V 7 I l I I I l I I l I I u l l I I I I I 1 jkg. 5.

OOOOOOOOOOOOOOO 0000000000000 0oo0oo0oo0-24- 0000000000000 00000000000000000000000 0000000000 0000000000000 0000000000 0000000000000 7 20000000000 0000000000000 7 0000000000 0000000000000 00000000000000000000000 0000000000 7/;z5ze-sses 53 152067 6607".-

% A drMewm COLUMBIA PLANOORAPH C0.,WASHINGTON. D. c.

UNITED STATES PATENT OFFICE.

HERBERT C. COLBURN, OF DENVER, COLORADO, ASSIGNOR TO THE COLBURNAUTOMOBILE COMPANY, OF DENVER, COLORADO, A CORPORATION.

WATER-COOLIN G APPARATUS FOR THE EXPLOSIVE-MIXTURE-OPERATING MOTORS 0FAUTOMOBILES AND OTHER VEHICLES.

Application filed March 31, 1911.

To all whom it may concern:

Be it known that I, HERBERT C. COLBURN, a citizen of the United Statesof A1nerica,residing in the city and county of Denver and State ofColorado, have invented a new and useful WVater-Cooling Apparatus forthe Explosive-Mixture-Operating Motors of Automobiles and otherVehicles, of which the following is a specification.

My invention relates to improvements in water cooling apparatus for theexplosive mixture operating motors of automobiles, and other vehicles,and the objects of my invention are: First, to provide a water coolingapparatus in which radiator surfaces are exposed to the atmosphere, andare provided with air passages free from air baffling, diverging, ordirecting plates, and in which the motor and its incasing hood, the dashboard and the water cooling apparatus, are so relatively arranged thatdust laden air is completely excluded from entering the incasing hood ofthe motor, and thus prevents the dust from settling on and working intothe worln'ng parts of the engines of the motor. Second, to provide awater cooling apparatus for motor driven vehicles in which coolatmospheric air is drawn into and is confined to the hot watercontaining portions of the water cooling apparatus, as long as it isdrawn through it and until it is discharged into the atmosphere and isprevented from entering the motors incasing hood and mingling with theradiating heat of the engine therein, and thus becoming superheated andlosing by such intermingling a large portion of its Water coolingelement; and third, to provide a simple, inexpensive, water coolingapparatus that is self-contained and accessible in all its parts, andthat is quickly and easily attached'to and placed in operative andcooperative relation to the water jacketed cylinders of the engine ofthe motors of automobiles.

I attain these objects by the mechanism illustrated in the accompanyingdrawings, in which:

Figure 1 is a view partly in side elevation and partly in section, ofthe forward portion of an automobile, showing the arrangement of myimproved cooling device. Fig. 2, is a transverse sectional view of thesame, omitting the engine and crank casing.

Specification of Letters Patent.

Patented Jan. 20, 1914.

Serial No. 618,167.

And Fig. 3, is a plan view of the lower water tank.

Similar letters of reference refer to similar parts throughout theseveral views.

Referring to the drawings, the numeral 1 designates the frame portion ofthe front end of an automobile. Upon this frame I mount an internalcombustion motor 2, and below the motor a pan 3 is placed, and issecured to the bottom of the frame and its opposite end portions 4 and 4are turned upward. The end 4 being closed and the pan is made air-tightenough to keep sand and dust from the rear-end of the motor by apartition 5 which is placed at a short distance from the end 4 of thepan. This transverse partition 5 is secured to the inside bottom portionof the pan, and extends across the pan and upwardly to and above theframe 1, and is arranged to connect with the bottom portion of aradiator. The end 4 of the pan is arranged to form a housing for a fan7, and a portion of its end is open to the atmosphere, as will beexplained more fully hereinafter. This partition forms a chamber 6,between the end wall 4 of the pan and the partition, which is arrangedand adapted toform a housing for a suction fan 7, that is arranged to bedriven by the motor. The end 4 of the pan is provided with an aperture8, which is arranged to permit the suction fan to discharge air from thechamber 6 through it into the atmosphere, and the end portion of the panis also housed around the rim of the fan and the fan is mounted in suchrelation thereto as to prevent eddying or swirling currents of air fromflowing past the discharge end of the fan through its dischargeaperture, which would in a measure reduce its full air suction drawingcapacity. A dash-board 9 is mounted on and secured to the frame 1 at ashort distance to the rear of the motor, and above the suction fan andits housing. This dash-board separates the motor and cooperating partsand their housings from the chauffeur and the passenger portion of theautomobile, and it also forms the support and the rear end plate or backportion of the radiator portion of my improved water cooling apparatus.

My invention contemplates a hot water cooling radiator that is adaptedto be connected to and used with any type or character of an explosivemixture operating.

motor having water jacketed cylinders and cylinder heads. I have,however, preferably illustrated my water cooling apparatus commentedto'a four-cycle, four-cylinder gasolene engine, the cylinders 10 and 11of which are preferably cast in pairs and are water jacketed at theirupper ends. These water jackets preferably consist of water passages'12, formed between and around the shell 13 of the cylinders and anouter shell 14, that is fonned around the shell 13 and at a sufficientdistance from the shell 13 to form water holding passages of area enoughto hold a sufficient amount of water to keep the cylinders operativelycool when the water is circulated through a water cooling radiator ofslffiicierit and properly arranged radiating surfaces.

A water conveying pipe 1 5 is connected by suitable fittings to thelower portion of the Walter passages around each pair of cylinders, anda water conveying pipe 16 is also connected to the top of the *waterpassages by suitable fittings at the top portions of each pair ofcylinders. These water con-l veying pipes are adapted to be connected to'my improved water cooling radiator, as will be fully explainedhereinafter A cran k ends of *the cylinders, and a crank shaft 18 isrdtatably mounted in the era-n 1: case in 'suifta ble journal bo xes 19formed therein.

This crank shaft is ro'tatably driven by suitable pisto'ns 20 and pistonrods 21, which are operatively mounted in the cylinders and connected tothe crank shaft. 'This crank shaift efitends rearwzrrdlv from the crank:case through partition 5 and the aperture '8 in the wall 4 to the rearportion of the automobile, where it is connected to mechanism adapted toimpart a -'controllable running movement to the automobile. I do notillustrate this mechanism as it does not form a part'o f my presentinvention. This partition 5 is arranged in such re'lative relation tothe rear 'end 4 of the pan as to form a suitable house'd chamber for asuction fan 7, which I have heretofore described.

My "ir'nproved air circuia'ting water cooling radiator comprises anupper water holding tank '22 and a lower 'water holding tank:

23, which are connected -together by two independent groups of waterholding and heat radiating tubes 24. These two tanks are substantiallyrectangular in shape and they are made long enough to extend entirelyacross the dash-board, and are secured to it and to the frame by angledbrackets or other suitable means. These two independent groups of tubesare placed at a sufficient distance from the center and the immediatecentral portion 'of the tanks to form a verti' cal a'i-r passageway 26between them, from case 17 is secured to the lower below the under sideof the upper tank to the lower tank, which is provided with a recessedopen space 27 formed in its front side at the central portion of itslength that extends into the tank a portion of its width. This openspace in the lower tank registers with and forms a straight, vertical,unobstructed air shaft or passageway from the under .side of the uppertank. through the radiator into the chamber 6 of the suction fan and tothe suction fan.

The upper tank 22 is provided with a water inlet nipple 27, to the topof which a cap 28 is removably fitted, to be easily removed and replacedby an attendant. The upper tank is connected by suitable pipeconnections 29, including a suitable coupling band 30, which ispreferably an elastic band, with the water circulating pipe 16, "thatextends to the top portion 'of the cylinders of the motor. The lowertank is also provided with suitable pipe fittings 31, including acoupling 'band 32, and is connected to the pipe 15 that connects withthe lower portions of the water passages of the cylinders olf the motor.

'The two independent vertical groups of tubes are each preferablyarranged in a square shaped block form of tubes and the individual tubesof *each group are preferably positioned at a sufiicien't distance apartfrom each other to permit atmospheric air to be drawn readily betweenand around them into the central vertical air passageway between the twogroups-of tubes, as will be fully explained hereinafter.

The dash-board acts as a rear side plate or wall between'the two wa-'tertanks and closes the space between their rear sides, and

their front sides are closed at the centralportion of their lengths by aplate '33, which is connected to the front side of the upper tank andextends to and covers the front side portion of the lower tank, andacross its air passageway 26 below the lower tank, and is bolted orriveted to the top of {the partition plate 5 which overlaps it, the endsof the plate 33 being secured to the tanks 22 and 23; consequently thisfront plate 33 and the partition 5 form together a complete-partitionbetween the radiator and the motor and the rear end of its incasinghood. This front plate 33 is made wide enough above "the lower tank tocover and close in the vertical air shaft passageway 26 and to overlap afew of the adjacent outside tubes on the front side portion of each ofthe "two groups of tubes, which arrangement of the plate leaves almostall of the front side of the tubes of each group of tubes exposed to theatmosphere. The outside ends of each group of tubes are also exposed tothe atmosphere.

The motor is surrounded by an incasin; hood 34, which rests on the frame1.. This hood is preferably of a converging inwardly curved wedge shapedform in outline from its base flange to its top, which is preferablyflat. The base of the hood preferably consists of a molding, the bottomrim of which is fitted to lieflat on the frame and is detachably securedto it by any suitable fastening means, by which the hood is held tightlyenough to the frame to practically exclude sand and dust from enteringunder its base edge to the motor. The rear end of the hood extends toand up against the front plate of the radiator, and its top flat rearedge is pivotally hinged to the front plate along the front side of theupper tank. The side edges of the hood are arranged to bear with theirrear edges against the outer edge portion of the plate 33, which ispreferably given the same form as the downwardly sloping sides of thehood.

The front plate 33 of the radiator is an imperforate plate thateffectually prevents any sand or dust that enters its central,downwardly extending, vertical air passage from drifting into the hoodand to the engines of the motor.

The upwardly sloping front end and the upwardly converging wedge form ofsides of the hood prevent the hood from acting as a wind break to keepthe air from striking the front side of the radiator tubes when theautomobile is running ahead, as the hood slopes away from the tubes onits front side and leaves the front tubes so exposed that they receivethe full force of either head or cross currents of air.

The front plate 38 of the radiator and its cooperating partition 5prevents any of the dust laden air that enters the air shaft of theradiator from entering the hood and consequently from flowing to themotor. This front plate also prevents the heat of radiation from themotor that collects within the hood from entering the radiator shaft. Inorder to allow this heat to escape from the hood, I provide its oppositesides with a plurality of apertures 39, which are arranged to permitthis radiated heat from the motor to escape to the atmosphere. Theseapertures are shielded by the usual projecting, backwardly extendinglips, which direct sand and dust away from the apertures.

The suction fan 7 is preferably made in the form of a combined suctionfan and flywheel, and consists of a hub portion 41, spirally arrangedblade shaped spokes 42, and a thick, heavy rim portion 43, the spokesbeing arranged to draw by suction air from the vertical air passage ofthe radiator and discharge it through the opening 8 in the end wall 4 ofthe casing. The fan and its chamber are arranged far enough to the rearof the lower tank of the radiator and of the lower edge of the dashboardto allow the vertical air passage through the lower tank to extenddirectly into the front end portion of the fans chamber 6, which permitsthe fan to draw a straight downward current of air from the outsideatmosphere through the air spaces between the tubes and through thevertical shaft between the adjacent sides of the dashboard.

The operation of my improved air circulating water cooling apparatus isas follows: A supply of water sufficient to practically fill the waterjacket passages that surround the cylinders of the motor and theircirculating pipes and the radiator is poured into the upper tank throughits inlet. Then when the motor is started to running the heat ofcombustion generated by successive explosions of the explosive mixture,used as an actuating fluid for the motor, heats the jacket water hot andit starts to circulate through its upper pipe 16 to the upper tank 22down through the two groups of tubes into the lower tank 23, and from itthrough the lower pipe 15 back to the lower part of the water passagesin the water jackets. Meanwhile the fan which started to rotate when themotor was started up draws the cool atmospheric air through the airspaces between the tubes of each group of tubes of the radiator, drawingit into the tubes of each group through the spaces at their front sidesand ends into the central downward vertical'unobstructed air shaftpassageway between the groups of tubes and the dashboard and front plateof the radiator through the air recess in the bottom tank into itschamber 6 and into its blades which force it out into the atmosphereunder the frame 1.

The essential features of my invention are as follows: First-it drawsair from the atmosphere through the spaces between the two groups oftubes into a central vertical passageway that extends directly to thefan, and this passageway is free from air baffling or directing platesor surfaces, which whenever present retard its movement and give off toit a portion of their heat which they absorb from the heat radiated fromthe engine and thus in a measure destroy the cooling influence of theair on the heat radiating surfaces of the radiator. Second this airpassageway from the outside atmosphere through the radiator to the fanis completely separated from the hot air surrounding the motor withinthe hood, and does not in the least enter the hood or receive aneutralizing heat from the hot air in the hood that radiates from themotor, as do the cooling radiators in use that direct the air from theradiator into and through the rear end of the hood by batlle plates andtortuous passageway and third-t0 prevent the sand, grit, dust, and dirtladen air that is drawn into the radiators air passageway by the fanfrom flowing into the hood to the motor, as in all cooling systems wherethis takes place the sand, grit and dust collects on the motor and oftenworks into and clogs and cuts into its working parts.

My water cooling apparatus is simple in construction and effective inapplying directly to the heat radiating surfaces of the radiator all ofthe cooling elements of rapidly moving cool air that is led to absorbonly such heat as radiates from the surfaces of the radiator, and whileI have illustrated and described the preferred construction andarrangement of my water cooling apparatus, I do not wish to be confinedto them, as many changes might be made without departing from the spiritof, my invention.

Having described my invention, what I claim as new and desire to secureby Letters Patent is:

A water cooling apparatus for motors of 'said dash-board, banks ofvertical tubes joining the tanks near their outer ends and, formingbetween the tanks a central vertical air space, a, front platesubstantially flush with the front edges of said tanks, a hoodterminating rearwardly at said front plate, an inclosed exhaustfanbeneath the lower tank having its front air-receiving face substantiallyflush with the dash-board, said lower tank having a relatively deepcut-out portion intermediate its ends and forward of the fan, wherebythe air sucked in between the tubes will have an unobstructed verticalHERBERT C. COLBURN.

Witnesses:

B. L. GoRIoH, E. A. COLBURN.

Copies of this patent may he obtained. for live cents each, byaddressing the Commissioner of Pstente.

Washington, D. G."

